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Nuclear Energy

Nuclear Energy is energy from the nucleus of an atom. In stars such as the sun, pairs of light atoms (mostly hydrogen) fuse together and release the radiation received on earth as solar energy.

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Cancer Breakthrough

The grandfatherly American with thinning hair who addressed cancer scientists in a Montreal hotel earlier this month did not look like someone about to set off an international media frenzy. Dr.

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Polar Lander Fails on Mars

No one knows exactly what the surface of Mars is like, but Robert Zubrin has a pretty good idea. At least some of it, he says, is much like a frozen, god-forsaken corner of the Canadian Arctic called Haughton Crater. The terrain is similar - rough-strewn rock on the floor of a crater 16 km across.

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Genetic Diseases

Genetic diseases result from chromosome abnormalities or mutant genes showing a specific pattern of inheritance. In addition, genetic factors are involved in susceptibility to some nongenetic DISEASES.

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Sabotage of Top Web Sites

How do you find out if your house is secure? One answer: try to bust in and see how hard it is. The cyberspace equivalent is what a northern Virginia company called Global Integrity was doing last week - paying half a dozen young computer whizzes to break into Web sites run by their clients.

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Stress

Stress was originally viewed as an overpowering external force acting upon individuals or objects. The mechanical engineer still uses the word in this sense, but human biologists have been less consistent in their terminology.

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Biological Product

A biological product is a substance derived from a living organism and used for the prevention or treatment of disease. Biologicals are usually too complex for chemical synthesis by a laboratory. These products include antitoxins, bacterial and viral vaccines, blood products and hormone extracts.

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The Discovery of Insulin

For many years scientists believed that some kind of internal secretion of the pancreas was the key to preventing diabetes and controlling normal metabolism. No one could find it, until in the summer of 1921 a team at the University of Toronto began trying a new experimental approach suggested by Dr. Frederick Banting.

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Exploring Mars

Driver required to operate robotic rover from 190 million kilometres away. Must be able to negotiate vehicle across rock-strewn martian terrain using commands that take 11 minutes to arrive. Experience with computer games an asset.

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Medical Drug Abuse

Although medicines have been misused for as long as they have been available, a universally accepted definition of the term "drug abuse" does not exist.

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Allergies

The alarmingly increasing frequency of allergies, affecting over 20% of the population in developed countries, has led to the establishment of a new branch of medicine, that of allergology, which is conceptually closely related to immunology.

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BSE-Infected Cow Found in Alberta

DANNY ROSEHILL remembers well the Tuesday morning in September when he watched the terrorist attacks on New York City while the weekly sale at his cattle auction house in Olds, Alta., continued apace. "The towers were brought down, 3,000 people killed, and yet the sale went on," says Rosehill.

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Genetic Engineering

Interspecies gene transfer occurs naturally; interspecies hybrids produced by sexual means can lead to new species with genetic components of both pre-existing species. Interspecies hybridization played an important role in the development of domesticated plants.

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Weather Observations

   Weather in Canada ranges from the extreme cold of the Arctic to tornadoes and other severe weather in the southern regions; from the storms and fog of the Atlantic to the dry heat and majestic thunderstorms of the prairies.

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Wireless hang-up

Ottawa’s unprecedented efforts to woo Verizon have sparked a fierce backlash from Canada’s carriers, and questions about what’s really best for Canadian consumers

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Wired Revolution on Campus

Nursing professor Ellie MacFarlane is a self-confessed "technological klutz," the type of person who finds programming a videocassette recorder a daunting experience. So it was with some trepidation that she learned last year that St.